This main bearing set provides you with best quality engine bearings for your 1989-2012 Dodge Ram 5.9L/6.7L Diesel. This Clevite P-Series is the oldest series of Clevite high performance bearings. Most P-Series main sets are full grooved to maximize oil flow to the bearings. The P-Series has a high crush for maximum retention, and a reduced overlay thickness to prevent overlay fatigue, sometimes preferred to as hen tracking.

Use P Series mains where higher eccentricity is desired to narrow bearing contact patterns and to provide increased oiling to rod bearings. Rod bearings oil starvation is typically indicated by polishing and smearing of the bearing surface, possibly accompanied by discoloration predominantly concentrated at the axial center of the bearings.

* Clevite P Series

* Size: .75MM Undersize